Giant rock flinging artillery piece. Capable of flaming and normal shot. Also able to fling diseased cows!
The counter-weight Trebuchet is an evolution of the man-powered mangonel and catapults dating back before the 11th century. It has quickly spread throughout the world as an effective siege engine capable of lobbing large wall- crushing boulders. The Trebuchet is also able to fling such things as burning missiles and rotten animal remains to devastate enemy companies.

Ballista

Catapult Maker

Siege Works

Trebuchet are recruited in European Cities or Castles with Siege Works after the "First Rudder in 1180".